Retinol Microsphere Gel 0.04% W/W (SUPATRET 0.04) What is Retinol Microsphere Gel (Supatret)? Our Retinol 0.04% gel is a topical medication with an active Vitamin A metabolite that is used to reduce and gradually remove the appearance of wrinkles, pimples, blackheads, age spots, and the roughness of facial skin while also facilitating the disappearance of darker and lighter...